Scheduled MonumentsWalesClyne Valley Shaft Mounds
Post Medieval/Modern · Coal Mine

Clyne Valley Shaft Mounds

Wales
Cadw SAM GM455
Period
Post Medieval/Modern
Site type
Coal Mine
Broad class
Industrial
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Clyne Valley Shaft Mounds is a Post Medieval and Modern industrial monument in Wales, designated as a scheduled ancient monument (SAM GM455) by Cadw. The site comprises spoil heaps and surface remains associated with coal mining operations in the Clyne Valley, reflecting the intensive mineral extraction that characterised South Wales during the industrial period. The shaft mounds themselves represent the accumulated waste material from deep mining activity, their physical form preserving evidence of the scale and methods of coal extraction in this region. As a record of Wales's industrial heritage, the monument contributes to understanding the landscape transformation wrought by the coal industry from the eighteenth century onwards.

Clyne Valley Shaft Mounds is a scheduled monument protected by Cadw under reference GM455. View the official record →

About this monument

Questions & answers

What is Clyne Valley Shaft Mounds?

Clyne Valley Shaft Mounds is a Post Medieval and Modern industrial monument in Wales, designated as a scheduled ancient monument (SAM GM455) by Cadw. It is designated a Scheduled Ancient Monument by Cadw under reference GM455.

What period does Clyne Valley Shaft Mounds date from?

Clyne Valley Shaft Mounds dates from the post medieval/modern period, and is classified as a coal mine. It is one of over 32,000 scheduled monuments protected across Britain.

Who is responsible for protecting Clyne Valley Shaft Mounds?

Clyne Valley Shaft Mounds is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM455.

What other scheduled monuments are near Clyne Valley Shaft Mounds?

Several scheduled monuments lie within 10 km, including Ynys Pit & Leat (0.4 km), Clyne Wood Colliery Steam Winding Machine (0.6 km), Clyne Wood Coal Level (0.7 km).

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